A analysis of diverging approaches to simple arithmetic : preference and its consequences
Gray, Edward M.
A analysis of diverging approaches to simple arithmetic : preference and its consequences - 551-574 - 1991 22, no. 6 = EDUCATIONAL STUDIES IN MATHEMATICS
ARITMETICA DEDUCCION DESARROLLO COGNOSCITIVO DESTREZAS DEL PENSAMIENTO DESTREZAS MATEMATICAS ENTREVISTAS
A analysis of diverging approaches to simple arithmetic : preference and its consequences - 551-574 - 1991 22, no. 6 = EDUCATIONAL STUDIES IN MATHEMATICS
ARITMETICA DEDUCCION DESARROLLO COGNOSCITIVO DESTREZAS DEL PENSAMIENTO DESTREZAS MATEMATICAS ENTREVISTAS